PHP FormStateInterface::getFormObject方法代碼示例

 /**
  * @param FormStateInterface $form_state
  * @return object | bool
  */
 public static function get_form_entity($form_state)
 {
     if (!is_null($form_state->getFormObject()) && method_exists($form_state->getFormObject(), 'getEntity')) {
         $entity = $form_state->getFormObject()->getEntity();
         return $entity;
     }
     return FALSE;
 }

 /**
  * {@inheritdoc}
  */
 public function formElement(FieldItemListInterface $items, $delta, array $element, array &$form, FormStateInterface $form_state)
 {
     /* @var $instance \Drupal\mailchimp_lists\Plugin\Field\FieldType\MailchimpListsSubscription */
     $instance = $items[0];
     $subscribe_default = $instance->getSubscribe();
     $email = NULL;
     if (!empty($instance->getEntity())) {
         $email = mailchimp_lists_load_email($instance, $instance->getEntity(), FALSE);
         if ($email) {
             $subscribe_default = mailchimp_is_subscribed($instance->getFieldDefinition()->getSetting('mc_list_id'), $email);
         }
     }
     $element += array('#title' => SafeMarkup::checkPlain($element['#title']), '#type' => 'fieldset');
     $element['subscribe'] = array('#title' => t('Subscribe'), '#type' => 'checkbox', '#default_value' => $subscribe_default ? TRUE : $this->fieldDefinition->isRequired(), '#required' => $this->fieldDefinition->isRequired(), '#disabled' => $this->fieldDefinition->isRequired());
     $form_id = $form_state->getFormObject()->getFormId();
     if ($this->fieldDefinition->getSetting('show_interest_groups') || $form_id == 'field_ui_field_edit_form') {
         $mc_list = mailchimp_get_list($instance->getFieldDefinition()->getSetting('mc_list_id'));
         $element['interest_groups'] = array('#type' => 'fieldset', '#title' => SafeMarkup::checkPlain($instance->getFieldDefinition()->getSetting('interest_groups_title')), '#weight' => 100, '#states' => array('invisible' => array(':input[name="' . $instance->getFieldDefinition()->getName() . '[0][value][subscribe]"]' => array('checked' => FALSE))));
         if ($form_id == 'field_ui_field_edit_form') {
             $element['interest_groups']['#states']['invisible'] = array(':input[name="field[settings][show_interest_groups]"]' => array('checked' => FALSE));
         }
         $groups_default = $instance->getInterestGroups();
         if ($groups_default == NULL) {
             $groups_default = array();
         }
         if ($mc_list['stats']['group_count']) {
             $element['interest_groups'] += mailchimp_interest_groups_form_elements($mc_list, $groups_default, $email);
         }
     }
     return array('value' => $element);
 }

 /**
  * {@inheritdoc}
  */
 public function buildConfigurationForm(array $form, FormStateInterface $form_state)
 {
     $form_object = $form_state->getFormObject();
     $form['animal_type'] = ['#type' => 'select', '#title' => $this->t('Animal type'), '#options' => ['vertebrates' => $this->t('Vertebrates (with backbone)'), 'invertebrates' => $this->t('Invertebrates (without backbone)')], '#default_value' => $this->getConfigurationValue('animal_type'), '#required' => TRUE, '#ajax' => ['callback' => [$form_object, 'updateTypeSettings'], 'effect' => 'fade']];
     if ($this->getConfigurationValue('animal_type') === 'vertebrates') {
         $form['allowed_vertebrates'] = ['#type' => 'checkboxes', '#title' => $this->t('Limit allowed vertebrates'), '#options' => ['amphibians' => $this->t('Amphibians'), 'birds' => $this->t('Birds'), 'fish' => $this->t('Fish'), 'mammals' => $this->t('Mammals'), 'reptiles' => $this->t('Reptiles')], '#default_value' => $this->getConfigurationValue('allowed_vertebrates', [])];
     }
     return $form;
 }

 /**
  * Submit handler for feedback options.
  */
 public static function addFeedbackOptionsSubmit(&$form, FormStateInterface &$form_state)
 {
     $forms = FormController::getProtectedForms();
     $mollom_form = Form::load($forms['delete'][$form_state->getFormObject()->getFormId()])->initialize();
     $entity_type = $mollom_form['entity'];
     if (!empty($entity_type)) {
         $id = $form_state->getFormObject()->getEntity()->id();
     } else {
         $id = $form_state->getValue($mollom_form['mapping']['post_id']);
     }
     $feedback = $form_state->getValue(array('mollom', 'feedback'));
     if (!empty($feedback)) {
         if (self::sendFeedback($entity_type, $id, $feedback, 'moderate', 'mollom_data_delete_form_submit')) {
             drupal_set_message(t('The content was successfully reported as inappropriate.'));
         }
     }
     // Remove Mollom session data.
     ResponseDataStorage::delete($entity_type, $id);
 }

 /**
  * {@inheritdoc}
  */
 public function enforceRevisionsBundleFormAlter(array &$form, FormStateInterface $form_state, $form_id)
 {
     /* @var \Drupal\node\Entity\NodeType $entity */
     $entity = $form_state->getFormObject()->getEntity();
     if ($entity->getThirdPartySetting('content_moderation', 'enabled', FALSE)) {
         // Force the revision checkbox on.
         $form['workflow']['options']['#default_value']['revision'] = 'revision';
         $form['workflow']['options']['revision']['#disabled'] = TRUE;
     }
 }

 /**
  * {@inheritdoc}
  *
  * @todo Change this because $component could be component type or component id
  *       Would make sense to make our own ParamConverterInterface's so component is loaded at this point?
  */
 public function buildForm(array $form, FormStateInterface $form_state, Node $node = NULL, $component = NULL)
 {
     // Load the component plugin.
     $form_state->getFormObject();
     if (empty($form['#component'])) {
         $component = $this->prepareComponent($node, $component);
     } else {
         $component = $form['#component'];
     }
     // Get the form from the component plugin.
     $form = $component->buildForm($form, $form_state, $node);
     return $form;
 }

 /**
  * {@inheritdoc}
  */
 public function entityFormEntityBuild($entity_type, EntityInterface $entity, array $form, FormStateInterface $form_state)
 {
     if ($form_state->hasValue('content_translation')) {
         $form_object = $form_state->getFormObject();
         $translation =& $form_state->getValue('content_translation');
         $translation['status'] = $form_object->getEntity()->isPublished();
         // $form['content_translation']['name'] is the equivalent field
         // for translation author uid.
         $account = $entity->uid->entity;
         $translation['name'] = $account ? $account->getUsername() : '';
         $translation['created'] = format_date($entity->created->value, 'custom', 'Y-m-d H:i:s O');
     }
     parent::entityFormEntityBuild($entity_type, $entity, $form, $form_state);
 }

  /**
   * Saves Schema.org mappings in \Drupal\node\NodeTypeForm.
   */
  public static function submitForm(array &$form, FormStateInterface $form_state) {
    if ($form_state->hasValue('types')) {
      $entity_type = $form_state->getFormObject()->getEntity();
      $mapping = rdf_get_mapping('node', $entity_type->id());
      if ($entity_type->isNew()) {
        $mapping = rdf_get_mapping('node', $form_state->getValue('types'));
      }

      if ($form_state->hasValue('types')) {
        $mapping->setBundleMapping(array('types' => array($form_state->getValue('types'))))
          ->save();
      }
    }
  }

 /**
  * {@inheritdoc}
  */
 public function formElement(FieldItemListInterface $items, $delta, array $element, array &$form, FormStateInterface $form_state)
 {
     // Determine if this is an existing or a new entity.
     /** @var \Drupal\Core\Entity\ContentEntityFormInterface $form_object */
     $form_object = $form_state->getFormObject();
     /** @var \Drupal\Core\Entity\EntityInterface $entity */
     $entity = $form_object->getEntity();
     $is_new = empty($entity->id());
     $behaviour = $this->getSetting('behaviour');
     if ($behaviour == 'create' && $is_new || $behaviour == 'modified') {
         $element['set_date'] = ['#type' => 'item', '#value' => TRUE];
     }
     return $element;
 }

 /**
  * {@inheritdoc}
  */
 public function buildConfigurationForm(array $form, FormStateInterface $form_state)
 {
     $options = [];
     foreach ($this->entityFieldManager->getFieldDefinitions('media', $form_state->getFormObject()->getEntity()->id()) as $field_name => $field) {
         if ($field->getType() == 'video_embed_field') {
             $options[$field_name] = $field->getLabel();
         }
     }
     if (empty($options)) {
         $form['summary']['#markup'] = $this->t('A video embed field will be created on this media bundle when you save this form. You can return to this configuration screen to alter the video field used for this bundle, or you can use the one provided.');
     }
     if (!empty($options)) {
         $form['source_field'] = ['#type' => 'select', '#required' => TRUE, '#title' => t('Source Video Field'), '#description' => t('The field on the media entity that contains the video URL.'), '#default_value' => empty($this->configuration['source_field']) ? VideoEmbedField::VIDEO_EMBED_FIELD_DEFAULT_NAME : $this->configuration['source_field'], '#options' => $options];
     }
     return $form;
 }

 /**
  * Form element validation handler; Invokes selection plugin's validation.
  *
  * @param array $form
  *   The form where the settings form is being included in.
  * @param \Drupal\Core\Form\FormStateInterface $form_state
  *   The form state of the (entire) configuration form.
  */
 public static function fieldSettingsFormValidate(array $form, FormStateInterface $form_state)
 {
     $field = $form_state->getFormObject()->getEntity();
     $handler = \Drupal::service('plugin.manager.entity_reference_selection')->getSelectionHandler($field);
     $handler->validateConfigurationForm($form, $form_state);
 }

 /**
  * Ajax callback for the job item review form.
  */
 function ajaxReviewForm(array $form, FormStateInterface $form_state)
 {
     $key = array_slice($form_state->getTriggeringElement()['#array_parents'], 0, 2);
     $render_data = NestedArray::getValue($form, $key);
     tmgmt_write_request_messages($form_state->getFormObject()->getEntity()->getJob());
     return $render_data;
 }

 /**
  * {@inheritdoc}
  */
 public function retrieveForm($form_id, FormStateInterface &$form_state)
 {
     // Record the $form_id.
     $form_state->addBuildInfo('form_id', $form_id);
     // We save two copies of the incoming arguments: one for modules to use
     // when mapping form ids to constructor functions, and another to pass to
     // the constructor function itself.
     $build_info = $form_state->getBuildInfo();
     $args = $build_info['args'];
     $callback = [$form_state->getFormObject(), 'buildForm'];
     $form = array();
     // Assign a default CSS class name based on $form_id.
     // This happens here and not in self::prepareForm() in order to allow the
     // form constructor function to override or remove the default class.
     $form['#attributes']['class'][] = Html::getClass($form_id);
     // Same for the base form ID, if any.
     if (isset($build_info['base_form_id'])) {
         $form['#attributes']['class'][] = Html::getClass($build_info['base_form_id']);
     }
     // We need to pass $form_state by reference in order for forms to modify it,
     // since call_user_func_array() requires that referenced variables are
     // passed explicitly.
     $args = array_merge(array($form, &$form_state), $args);
     $form = call_user_func_array($callback, $args);
     // If the form returns some kind of response, deliver it.
     if ($form instanceof Response) {
         $this->sendResponse($form);
         exit;
     }
     $form['#form_id'] = $form_id;
     return $form;
 }

 /**
  * Process callback to alter action buttons.
  */
 public static function processActions($element, FormStateInterface $form_state, array &$form)
 {
     // We'll steal most of the button configuration from the default submit
     // button. However, NodeForm also hides that button for admins (as it adds
     // its own, too), so we have to restore it.
     $default_button = $form['actions']['submit'];
     $default_button['#access'] = TRUE;
     // Add a custom button for each transition we're allowing. The #dropbutton
     // property tells FAPI to cluster them all together into a single widget.
     $options = $element['#options'];
     $entity = $form_state->getFormObject()->getEntity();
     $translatable = !$entity->isNew() && $entity->isTranslatable();
     foreach ($options as $id => $label) {
         $button = ['#dropbutton' => 'save', '#moderation_state' => $id, '#weight' => -10];
         $button['#value'] = $translatable ? t('Save and @transition (this translation)', ['@transition' => $label]) : t('Save and @transition', ['@transition' => $label]);
         $form['actions']['moderation_state_' . $id] = $button + $default_button;
     }
     // Hide the default buttons, including the specialty ones added by
     // NodeForm.
     foreach (['publish', 'unpublish', 'submit'] as $key) {
         $form['actions'][$key]['#access'] = FALSE;
         unset($form['actions'][$key]['#dropbutton']);
     }
     // Setup a callback to translate the button selection back into field
     // widget, so that it will get saved properly.
     $form['#entity_builders']['update_moderation_state'] = [get_called_class(), 'updateStatus'];
     return $element;
 }

 /**
  * Form submission handler for ContentTranslationHandler::entityFormAlter().
  *
  * Takes care of content translation deletion.
  */
 function entityFormDeleteTranslation($form, FormStateInterface $form_state)
 {
     $form_object = $form_state->getFormObject();
     $entity = $form_object->getEntity();
     $entity_type_id = $entity->getEntityTypeId();
     $form_state->setRedirect('content_translation.translation_delete_' . $entity_type_id, array($entity_type_id => $entity->id(), 'language' => $form_object->getFormLangcode($form_state)));
 }